#include <iostream>
#include <string>
using namespace std;
int sumOfASCII(string str)
{
int sum = 0;
for(int i = 0; i < str.length(); i++)
{
sum+=str[i];
}
return sum;
}
int main() {
string str;
cin >> str;
cout << sumOfASCII(str);
return 0;
}
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